Most of us don’t go a day without wearing sunglasses, but do you even know if they perform the task they were designed for? Sunglasses are the most effective defense against UV (ultraviolet) light and yet, many people aren’t even sure if their favorite sunglasses have adequate UV protection against the sun's rays. Unprotected extended [...]
Visible light transmission (VLT) is the measurement of how much light passes through a given eyewear lens. The VLT scale ranges from 0 - 100%, with 0% allowing absolutely no light through while a VLT of 100% enables all light to pass through its lens. Lens color, tint, and finish play a significant role in visible [...]